TW022WA01 and TW022WA02 are compact 22 mm neodymium tweeters for applications where small size is important, while requiring the highest level of performance

The best of two worlds?The design with 22 mm voice coil and wide surround caters for both applications that would normally require traditional ¾” tweeters and those, where 1” tweeters would usually be used.

Photo: TW022WA02

InnovativeIn order to keep distortion and resonance frequency low the TW022WA01/02 are designed around an external neodymium ring magnet in order to allow for a larger internal volume than that of traditional neodymium tweeter.The dome shape and material choice allow for almost full output level to beyond 40 kHz.

The only difference between the two models is that TW022WA02 is shipped with an optimized face plate attached while TW022WA01 comes without face plate, for direct mounting in the enclosure/baffle.

It is generally a rough simplification to assume that loudspeaker transducer voice coils exhibit the characteristics of an inductor. Instead it is a far more accurate approach to use the more advanced model often referred to as the “Wright empirical model”, also used in LEAP-4 as the TSL model (www.linearx.com), involving parameters Krm, Erm, Kxm, and Exm. This more accurate transducer model is described in a technical paper (PDF) here.

Note 6

Calculated as the area inside the middle of the surround.

Note 7

Determined by physical weighing of the moving parts including the inner half of the surround.